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A platform for research: civil engineering, architecture and urbanism
Railway beam-arch-truss combined system bridge
The invention discloses a railway beam-arch-truss combined system bridge. At present, the span of a concrete continuous rigid frame-stiffening steel truss structure in a railway bridge generally does not exceed 200m. The structure comprises a concrete main beam, a stiffening steel truss above the main beam and a concrete arch section below the main beam, the main beam and the concrete arch section are arranged on the two sides of the middle fulcrum and converge in the midspan direction. A triangular area is formed at the middle fulcrum, a main beam section is arranged above the triangular area, a concrete arch section is arranged below the triangular area, and a solid web beam section is formed after the main beam section and the concrete arch section are converged; the stiffening steel truss comprises an upper chord member, a web member and a cross brace, the web member is arranged between the upper chord member and the main beam, and the space between the upper chord member and the main beam is divided into a plurality of isosceles triangle units; and cross braces are arranged between the upper chords. The overall rigidity of the structure is improved, the weight of the structure is reduced, the spanning capacity is improved, and the application range of the concrete structure in railroad bridges can be widened.
本发明公开了一种铁路梁‑拱‑桁组合体系桥梁。目前铁路桥梁中的混凝土连续刚构‑加劲钢桁结构跨度普遍未超过200m。本发明包括混凝土主梁、主梁上方的加劲钢桁和下方的混凝土拱段；主梁与混凝土拱段在中支点两侧设置，向跨中方向汇合；在中支点处形成三角区，三角区以上为主梁梁段，以下为混凝土拱段，主梁梁段与混凝土拱段汇合后，形成实腹梁段；加劲钢桁包括上弦杆、腹杆和横撑，上弦杆与主梁之间设置腹杆，将上弦杆与主梁间的空间分成若干个等腰三角形单元；上弦杆间设置横撑。本发明增大结构整体刚度，减轻结构重量，提高跨越能力，可提高混凝土结构在铁路桥梁中的适用范围。
Railway beam-arch-truss combined system bridge
The invention discloses a railway beam-arch-truss combined system bridge. At present, the span of a concrete continuous rigid frame-stiffening steel truss structure in a railway bridge generally does not exceed 200m. The structure comprises a concrete main beam, a stiffening steel truss above the main beam and a concrete arch section below the main beam, the main beam and the concrete arch section are arranged on the two sides of the middle fulcrum and converge in the midspan direction. A triangular area is formed at the middle fulcrum, a main beam section is arranged above the triangular area, a concrete arch section is arranged below the triangular area, and a solid web beam section is formed after the main beam section and the concrete arch section are converged; the stiffening steel truss comprises an upper chord member, a web member and a cross brace, the web member is arranged between the upper chord member and the main beam, and the space between the upper chord member and the main beam is divided into a plurality of isosceles triangle units; and cross braces are arranged between the upper chords. The overall rigidity of the structure is improved, the weight of the structure is reduced, the spanning capacity is improved, and the application range of the concrete structure in railroad bridges can be widened.
本发明公开了一种铁路梁‑拱‑桁组合体系桥梁。目前铁路桥梁中的混凝土连续刚构‑加劲钢桁结构跨度普遍未超过200m。本发明包括混凝土主梁、主梁上方的加劲钢桁和下方的混凝土拱段；主梁与混凝土拱段在中支点两侧设置，向跨中方向汇合；在中支点处形成三角区，三角区以上为主梁梁段，以下为混凝土拱段，主梁梁段与混凝土拱段汇合后，形成实腹梁段；加劲钢桁包括上弦杆、腹杆和横撑，上弦杆与主梁之间设置腹杆，将上弦杆与主梁间的空间分成若干个等腰三角形单元；上弦杆间设置横撑。本发明增大结构整体刚度，减轻结构重量，提高跨越能力，可提高混凝土结构在铁路桥梁中的适用范围。
Railway beam-arch-truss combined system bridge
一种铁路梁-拱-桁组合体系桥梁
SHI YAOJUN (author) / YANG SHAOJUN (author) / KANG WEI (author) / ZHENG JIPING (author) / YANG JING (author) / WANG XIAOJUN (author) / OUYANG HUILAI (author) / LI XIAOJUN (author) / FENG YACHENG (author) / LI XIA (author)
2023-09-29
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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